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5210232661 is a prime number
BaseRepresentation
bin1001101101000110…
…11101011101010101
3111110002222020120001
410312203131131111
541132304421121
62221001211301
7243054150454
oct46643353525
914402866501
105210232661
112234049a07
121014a90b31
1365058960a
14375d88b9b
15207632991
hex1368dd755

5210232661 has 2 divisors, whose sum is σ = 5210232662. Its totient is φ = 5210232660.

The previous prime is 5210232623. The next prime is 5210232673. The reversal of 5210232661 is 1662320125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5188320900 + 21911761 = 72030^2 + 4681^2 .

It is a cyclic number.

It is not a de Polignac number, because 5210232661 - 213 = 5210224469 is a prime.

It is a super-2 number, since 2×52102326612 = 54293048763502281842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5210232061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605116330 + 2605116331.

It is an arithmetic number, because the mean of its divisors is an integer number (2605116331).

Almost surely, 25210232661 is an apocalyptic number.

It is an amenable number.

5210232661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5210232661 is an equidigital number, since it uses as much as digits as its factorization.

5210232661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 5210232661 is about 72181.9413773279. The cubic root of 5210232661 is about 1733.6138675091.

Adding to 5210232661 its reverse (1662320125), we get a palindrome (6872552786).

The spelling of 5210232661 in words is "five billion, two hundred ten million, two hundred thirty-two thousand, six hundred sixty-one".